<link rel="stylesheet" type="text/css" href="./css/loading.css"/>
<div id="loading"
     style="position: absolute;width: 100%;height: 100%;background: rgba(0,0,0,.5);z-index: 5;display: none">
    <section class="main">
        <!-- the component-->
        <ul class="bokeh">
            <li></li>
            <li></li>
            <li></li>
            <li></li>
        </ul>
    </section>
</div>
